<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
	</head>
	<body>
		<script>
			function add() {
				alert(arguments.callee)
				alert(arguments.callee.caller)
				return arguments[0] + arguments[1]
			}
			
			alert(add(1, 2))
		</script>
	</body>
</html>
